Yay! thanks, Gerry!
For those still to come who can't think of what to say, you can talk about any relevant or even remotely related detail.
ideas...
-how you got the idea
-why you wanted to do it
-the models you made, if any
-what was hard
-dont' say anything at all, have a guest commentary from your mom or your five-year old inste
-anything that will give the viewer some behind the scenes insight.